Survey and Analysis of the Losses in Grain Postproduction System

In this paper , survey and reseach on the grain loss of paddy postproduction were made at Jinhua, Jiaxing and Ningbo in Zhejiang province from 1987 to 1988. The quantity losses of the every operation in the three typical paddy postproduction systems have been obtained. By use of variance analysis and SSR method, the order of importance of operation and causes which affect the quantity loss have been reached. This paper shows that quantity losses of paddy postproduction systems are very high. Some methods of reducing the loss have been proposed.